CVE-2026-72987: Windows DNS Remote Code Execution Vulnerability
Use after free in Windows DNS allows an unauthorized attacker to execute code over a network.
Other sources
Windows DNS Remote Code Execution Vulnerability
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.26100.33438Patch KB5122871 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.20348.5622Patch KB5122882 - Upgrade
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Fixed in 6.2.9200.26349Patch KB5123065 - Upgrade
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Fixed in 6.3.9600.23397Patch KB5123066 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.14393.9512Patch KB5123099 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 10.0.17763.9245Patch KB5122876
Event History
Frequently Asked Questions
Which systems should be prioritized for assessment?
Prioritize Microsoft Windows 10 and the listed Windows Server versions: 2012, 2012 R2, 2016, 2019, 2022, and 2025. The issue is in Windows DNS, so systems providing or exposing DNS-related functionality warrant particular attention.
Does exploitation require authentication or user interaction?
No. The supplied severity vector indicates that an attacker does not need privileges or user interaction, and the vulnerability can be reached over a network.
What impact could successful exploitation have?
Successful exploitation can allow remote code execution. The provided vector rates confidentiality, integrity, and availability impact as high.
How difficult is exploitation expected to be?
The severity vector assigns attack complexity as high. This indicates exploitation has additional conditions or constraints, although the provided data does not specify what those conditions are.